package servlets.admin.config;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import utils.FeedbackStatus;
import utils.ShepherdLogManager;
import utils.Validate;

/**
 * This class is responsible for requests to configure the applications Feedback Status. It is used
 * specifically to enable feedback <br>
 * <br>
 * This file is part of the Security Shepherd Project.
 *
 * <p>The Security Shepherd project is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software Foundation, either
 * version 3 of the License, or (at your option) any later version.<br>
 *
 * <p>The Security Shepherd project is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE. See the GNU General Public License for more details.<br>
 *
 * <p>You should have received a copy of the GNU General Public License along with the Security
 * Shepherd project. If not, see <http://www.gnu.org/licenses/>.
 *
 * @author Mark Denihan
 */
public class EnableFeedback extends HttpServlet {

  private static final long serialVersionUID = 1L;
  private static final Logger log = LogManager.getLogger(EnableFeedback.class);

  /**
   * If this method is called by a valid administrator the FeebackStatus will be set to turn
   * feedback on for all modules
   *
   * @param csrfToken
   */
  public void doPost(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    // Setting IpAddress To Log and taking header for original IP if forwarded from proxy
    ShepherdLogManager.setRequestIp(request.getRemoteAddr(), request.getHeader("X-Forwarded-For"));
    log.debug("*** servlets.Admin.config.EnableFeedback ***");
    PrintWriter out = response.getWriter();
    out.print(getServletInfo());
    HttpSession ses = request.getSession(true);
    Cookie tokenCookie = Validate.getToken(request.getCookies());
    Object tokenParmeter = request.getParameter("csrfToken");
    if (Validate.validateAdminSession(ses, tokenCookie, tokenParmeter)) {
      ShepherdLogManager.setRequestIp(
          request.getRemoteAddr(),
          request.getHeader("X-Forwarded-For"),
          ses.getAttribute("userName").toString());
      log.debug("Current User: " + ses.getAttribute("userName").toString());
      if (Validate.validateTokens(tokenCookie, tokenParmeter)) {
        try {
          FeedbackStatus.setEnabled();
          out.print(
              "<h3 class=\"title\">Feedback Enabled</h3><br>"
                  + "<p>"
                  + "Users now have to submit a feedback form to complete a module."
                  + "<p>");
        } catch (Exception e) {
          log.error("Enable Feedback Error: " + e.toString());
          out.print(
              "<h3 class=\"title\">Enable Feedback Failure</h3><br>"
                  + "<p>"
                  + "<font color=\"red\">An error Occurred! Please try again.</font>"
                  + "<p>");
        }
      } else {
        log.debug("CSRF tokens did not match");
        out.print(
            "<h3 class=\"title\">Enable Feedback Failure</h3><br>"
                + "<p>"
                + "<font color=\"red\">An error Occurred! CSRF Tokens did not match.</font>"
                + "<p>");
      }
    } else {
      out.print(
          "<h3 class=\"title\">Enable Feedback Failure</h3><br><p><font color=\"red\">An error"
              + " Occurred! Please log in or try non administrator functions!</font><p>");
    }
    log.debug("*** servlets.Admin.config.EnableFeedback END ***");
  }
}
